Lumen / Laravel-从对象数组中的对象中提取特定属性的方法？

Question

我有以下数据：

    [{
      "id": 1,
      "name": "test1",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 2,
      "name": "test12",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 3,
      "name": "test123",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 4,
      "name": "test1234",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 5,
      "name": "test12345",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 6,
      "name": "test123456",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 7,
      "name": "test1234567",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 8,
      "name": "test12345678",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 9,
      "name": "test123456789",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 10,
      "name": "test1234567890",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 11,
      "name": "test12345678901",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }, {
      "id": 12,
      "name": "test123456789012",
      "created_at": "2020-01-30 15:55:44",
      "updated_at": "2020-01-30 15:55:44"
    }]

此数据是通过雄辩的模型检索的，如下所示：

$ad_groups = Ad_user::find($request->decodedToken->user_id)->ad_groups()->get();

我不知道雄辩模型的任何“继承”功能是否仍然存在于$ad_groups中，这就是为什么我在这里为您发布它，以便您知道我们必须使用的^^

我基本上要完成的工作是使id超出。我当然可以编写一个foreach循环。但是我是Lumen / Laravel的新手，我想知道在这种情况下是否还有一些很棒的方法，例如...>getMeWhatIWant()：D

Answer 1

您可以在Laravel集合（pluck）上使用official docs here方法。

您只需将要检索的列名作为第一个参数传递：

$ids = $ad_groups->pluck('id');
dd($ids);